Shishio, Demonic Samurai

Bushido X, where X is the highest power of any creature blocking or blocked by Shishio, Demonic Samurai(Whenever this creature blocks or becomes blocked, it gets +X/+X until end of turn.)
Whenever Shishio, Demonic Samurai deals
combat damage to a player you gain 1 life, and
that player discards a card.
In life he was the greatest samurai, in death nothing
has changed.